Art AudioOpus 4newArt Audio Opus 4 50w Triode KT88 Mono-Block (Pair)30 Day In-Home Trial, Just Pay Return ShippingThe Opus 4 is designed for maximum flexibility. Using a KT-88 tube wired in Triode, you get 50w of spectacular power. The unique chassis was develope...10999.00

Art Audio Opus 4 50w Triode KT88 Mono-Block (Pair)

Listing ID: lis9ibad Classified 
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Time Left: 18m 13s
New Retail Price: $10,999.00


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Ships fromGreenwich, CT, 06831
Ships toUnited States
Package dimensionsunspecified
Shipping carriersUPS or FedEx
Shipping costFree
Original accessoriesBox, Manual
Agon miniAverage Research Pricing

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The Opus 4 is designed for maximum flexibility.  Using a KT-88 tube wired in Triode, you get 50w of spectacular power.  The unique chassis was developed to be perfect in a stereo application but to take up less space in multi-channel applications.  

Normal mono-blocks take up twice the space of a stereo amplifier.  The Opus 4's narrow chassis takes up half the space.  Separate them like any traditional mono-block or they can be seated together on the same shelf if need be.  

Music is amazing with tubes, home theater is even better.  Movies are not known for spectacularly mastering and sound is regularly harsh and fatiguing.  

Where it would be highly space prohibitive to have five or seven traditional mono-blocks, five of the Opus 4s would take up less space than two solid state amplifiers and 7 only slightly more.  

The Opus 4 is hand-made to order in the UK.  It typically takes 4-6 weeks for delivery.  

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Return Policy
Return Window

Item can be returned within 30 days of receipt.

General Terms

Items must be returned in their original condition, with all included packing materials and no signs of use. Buyer assumes responsibility for all shipping return costs unless the item was not received as described.


Buyer will receive a full refund in the original payment method less any shipping charges.

Special Conditions

All devices are sold in working order unless otherwise stated and will ship to you well packed either in original packaging or a new carton with more than adequate shipping material. It will be insured so the only way I will accept a return is in a scenario where the product was damaged during shipping.


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